Introduce multiple posting in alternate and post

1. Use batch request
2. merge posts in the same second into one fb request
3. complicated error handling: server error (timeout, internal server
   error, ...), global error (from the entire batch request), and
   individual error (from specific users) in alternate.php
Make post.php callable from wrapper.php and more

1. Replace all tab with 4 blanks
2. Modify post.php for calling from wrapper.php
3. Check count and goal in post.php
4. Change some error handling and fix some bugs
5. Add check.php for checking syntaxes
Two primary changes, see 4 and 5

1. Using lcfirst() in autoload(), thus requiring php 5.3
2. Shorten the timeout of facebook api calls to 20sec
3. Modify some error handling
4. text_mgr.php: partially done. Texts cannot be modified yet.
5. Use javascript to acquire access_token instead of php
6. Use a simpler and faster version of json_unicode() in util.php
7. Check whether RSS is valid UTF-8 in rssReader.php
8. Provide logging out only test_yan in index.php
9. Convert CR/LF files to LF style